Plow.



Patented 00h23, |9700..v

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UNiTED STATES' PATENT OFFICE.

JOHN N. HANNA, OF DEL NORTE, COLORADO.

PLOW.

srnoImcA'rIoN ferming pea of Lettere Patent Ne. 660,430, dated october23, 1900.`

Application tied July 24, 1900.`

T0 all whom it may concern: A

Be it known that I, JOHN N. HANNA, a citizen of the United States, and aresident of Del Norte, in the county of Rio Grande and State ofColorado, have invented a new and Improved Plow, of which the followingis a full, clear, and exact description.

The invention relates to that class of plows provided with two sharesand moldboards located at opposite sides of the beam and means forbringing either share and its moldboard in operative connection with acommon land# side.

The purpose of the invention is to simplify the construction of suchplows and to provide an adjustable beam so arranged that but littlestrain will be sustained by the handles and to so shape the beam thatlarge or smallV sized moldboardsrnay be employed, together with aturning and locking device for the shares and their moldboards, whichturning and locking device islocated Within con venient reach from thehandles.

The invention consists in the novel construction -and combination oftheV several parts, as will be hereinafter fully set forth,

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar charactersof reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the improved plow. Fig. 2 is a plan viewof the same. Fig. 3 is an enlarged side elevation of one portion of theplow-beam and the supports for the same. Fig. 4 4is a vertical sectionthrough the tion; and Fig. 5 is a detail lperspective view of partshereinafter more particularly described. I

The beam A may be made of any material. Usually, however, metal isemployed, and at or near the center the beam A is providedwith anupwardly-arched section 10, and the rear end 11 of the beam is givenmore or less of an upward inclination, as is best shown in Fig. 1. Athumb-latch 12 is mounted upon the rear end portion of the beam, saidthumblatch being spring-controlled, and the forward end of thisthumb-latch extends down through an opening at the rear of the archedsection 10 of the beam to an engagement with'teeth l seria Ne. 24,635.on meaei.)

'13, formed in the rear edge of a horizontaly plate 14, in which platea'curved longitudinal slot 15 is produced for the purpose of guiding theplow-beam, which beam is pivoted on supports to be hereinafterdescribed. r[he plate section 10'0f the beam a second standard- 18 islocated, the forward Yend whereof is also attached to the landside 17.The upper portion of this forward standard 1S serves as a pivotsupportfor the beam A, and to that end a piu 19, provided with a .head at itslower end and with a suitable nut atits upper end, is passed looselythrough the beam and likewisethrough a suitable bearing made inthe upperportion of said standard 18, adjacent to which bearing anr opening isproduced,-as shown in Figi 3, in order that the head of the bolt may beplaced at the top of the beam, if desired, and'the nut introduced atsaid opening, said opening also enabling the bolt to be placed in thepositionV shown in Fig. 3. l The beam A has guided movement upon theplate 14, which serves as a table, and to that end a bolt 2O is passedthrough the beam at the rear of its arched section 10 and through thecurved slot 15 in the plate or table 14. The upper end of this bolt isprovided with a suitable nut 21, and the lower end of said boltis'carried indirection of the rear of the beam, and on the arm thusformed a friction-roller2l is mounted, adapted-to engage with the underface of the plate or table 14, as isI especially shown in Fig. 3. Thebeam A is further guided by placing a friction-roller 22 in a recess 22amade in the lower edge of the beam over the table or platform 14, asisshown in Figs. 1 andj3, the trunnions of theY upper friction-roller 22being journaled in uthe side walls of the recess 221, and this upperroller 22 travels upon the upper face of the table 14. The bolt 20 ispreferably square where it passes through the beam, so that the boltwill not turn.

It will be observed that by adjusting the bolt 20, carrying the lowerroller 21a, both rollers will be in practically the same adjust- TOOment. The handles 23 of the plow are at.- tachedto the rear standard 16,so that should the beam be carried to the right or to the left saidhandles 23 do not sustain undue strain, since they arein no mannerconnected with the beam.

Boxes 24 are formed upon the standards 16 and 18, and in these boxes ashaft 25 is journaled. rlhis shaft 25 is usually made'tubular intheinterest of lightness and extends forward beyond the standard 18 andrearward beyond the standard 16 to a point below the handles 23. Theshaft is preferably provided with a socket 26 at its rearend,and ananglelever 27 is pivoted at the junction of its members i/n said socket,so that the handles may be rocked verticallyand so that said handleswhen operated laterally will turn the shaft 25 to the right or to theleft. A guide 28, attached to the handles 23 and extending below them,is utilized to direct the movement of the main member of the lever 27,and the ends of this guide extend forward parallel with the outer facesof the handles 23. The lever 27, in addition to its function of turningthe shaft 25, is likewise intended to op` erate a locking device for theshares and moldboards, to be hereinafter described, and to this end aslotted bar 29 is held to slide on the standards 16 and 18 at a pointabove the landside'17, and at the forward end of this bar an angle-arm30 is formed, the horizontal member of which is adaptedto pass through aU-shaped projection 31, formedV upon the upper edge of the landside nearthe front. The slotted bar 29 is provided with guides upon the frontstandard 18, and said bar is open at the front except that portion ofthe arm 30 which enters the projection 31, so as to free itself of dirt.i

.At the rear end of the slotted bar 29 an upward extension 32 is formed,adapted to slide on the shaft 25, and a spring 33 engages with the rearedge of the extension 32 and has bearing against a collar 34. When theslotted bar 29 is drawn rearward to disengage the arm 30 from theU-shaped projection 31 on the landside, the spring 33 is compressed, andthis movement of the slotted bar 29 is accomplished by connecting theends of a link 35 with the upper portion of the bar extension 32 and theforward member of the lever 27, as is best shown in Fig. 1. When themain portion of the lever 27 is carried along the main or rear surfaceof the guide 28, the arm 30 of the slotted bar 29 will be disengagedfrom the U projection 31 of the landside and the lever may be movedlater ally, so as to turn the shaft 25 at the same time. When, however,the lever 27 reaches an end of the guide 28, the. lever will be nolonger held by the guide 2S, and the spring 33 will act to carry theslotted bar 29 forward and cause the arm 30 to be brought again inlocking engagement with the landside.

The shares and moldboards are each two in number, and the shares 36 areattached to 'portion of each point.

These combined shares and moldhoards are placed withthe inner edges ofthe shares and moldboards facing each other, and the opposing moldboardsare connected near the front by a short strap 37 and near the rear by alonger strap 38. At the central portion of these straps 37 and 38 eyes39 are formed, through which the shaft 25 passes, the eyes being securedto said straps in any approved manner. When the moldboards and sharesare so attached, nthe forward eye 39 will be in front of the forwardstandard 18 and the rear eye between the two standardsl and 18.

At the under face of each moldboard an eye 40 is formed, and these eyesare so placed that when the mold board by turning the shaft 25 isbrought down to an engagement with the ground and in engagement with thelandside 17 the eye of that moldboard will enter the space between themembers of the U projection 31 from the landside, so that. the arm 30 inpassing through said projection 31 will likewise pass through the eye40, and thus hold one of the moldboards and attached share in workingposition. Preferably an in terlockiug connection is formed between thepoint of the share and the landside, made by producing a Spur 41 on theforward end of the landside adapted to enter a recess 42, one of saidrecesses being made at the landside The landside 17 is preferably madehollow and tubular, as shown in Fig. L1, in order that it may be aslight as possible; but its ends may be closed, if desired.

In operation the beam may be directed at its forward end to the rightorto the left without interfering with the position of the supports forthe beam and the position of the moldboards and shares. It is evidentthat by moving the lever 27 to the right or to the left either one o1'the other of the combined moldboards and shares may be brought to theground, and when one moldboard and share are in working position theopposing moldboard and share will beheld out of the ground. The arch 10in the beam A permits the use of a very large size of moldboard, asshown in Fig. 1.' If a still larger size of moldboard. is required, alarger arch 10 may be substituted for the one shown.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a plow, the combination, with standardsarranged for connection with a beam and a landside secured to the lowerends of the standards, of a shaft mounted to revolve upon the standardsabove the landside, extending forward and rearward from the standards,two combined plowshares and moldboards, straps connecting themoldboards, which straps are secured at their centers to said shaft, alocking device arranged to lock the lnoldboards to the landside, and alever con nected with the shaft, which lever is likewise IOO IIO

connected with the locking device and serves to operate both, asdescribed.

2. In a plow, the combination, with standards arranged for connectionwith a beam and a landside secured at the lower ends of the standards,of a shaft mounted to revolve in said standards above the landside,extending beyond the front and rear portions of the standards, handlesattached to the rear standard, a lever pivoted to the rear end of theshaft, a guide with which the lever is oonnected, a slotted projectionformed upon the upper surface of the landside near its` forward end, alocking device consisting of a slotted bar having sliding movement onthe standards and an arm which passes through the slotted projectionfrom the landside, an extension from the rear of the bar, held to slideon the shaft, a spring mounted on the shaft and acting to force theslotted bar forward, and a connection between the extension fro'm theslotted bar and the lever pivoted on the shaft, combined plowshares andmoldboards located one at each side of the shaft, straps connecting themoldboards, which straps are secured at their centers to the shaft, andeyes carried by the moldboards, adapted to enter the space between themembers of the slotted projection on the iandside i and receive the armcarried by the slotted bar of the. locking device, for the purpose set'slot therein and teeth at its rear edge, of a beam pivoted upon thelforward standard, a roller engaging with the under surface of the table,a support for the said roller, adjustably attached to the beam andpassed through the guide-slot ink the table, a second roller carried bythe beam and. arranged for engagement with the upper surface of saidtable, and a thumb-latch located at the rear end portion of the beam,the forward end of which latch is adapted to engage with the toothedsurface of said table, for the purpose specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN N. I-IANNA. Witnesses:

HENRY HANNA, WILBER E. SHAW.

